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authorDavid Robillard <d@drobilla.net>2011-11-06 17:49:36 +0000
committerDavid Robillard <d@drobilla.net>2011-11-06 17:49:36 +0000
commit25bf55a64172a9be67331a15d4338e2a3427b1d2 (patch)
treeaf1756dc50fdc1f12b8fa26dc74bc03b29cea9cc /ext/state.lv2
parenta0320122b94a8c92cd780f8d3c9da7260ec400e6 (diff)
downloadlv2-25bf55a64172a9be67331a15d4338e2a3427b1d2.tar.xz
Add features parameters to save() and restore().
Fix outdated references to callback_data in documentation.
Diffstat (limited to 'ext/state.lv2')
-rw-r--r--ext/state.lv2/state.h29
1 files changed, 18 insertions, 11 deletions
diff --git a/ext/state.lv2/state.h b/ext/state.lv2/state.h
index f52b375..82105e5 100644
--- a/ext/state.lv2/state.h
+++ b/ext/state.lv2/state.h
@@ -175,18 +175,20 @@ typedef struct _LV2_State_Interface {
@param instance The instance handle of the plugin.
@param store The host-provided store callback.
- @param callback_data An opaque pointer to host data, e.g. the map or
+ @param handle An opaque pointer to host data, e.g. the map or
file where the values are to be stored. If @c store is called, this MUST
- be passed as its callback_data parameter.
+ be passed as its handle parameter.
@param flags Flags describing desires properties of this save. The
plugin SHOULD use these values to determine the most appropriate and/or
efficient serialisation, but is not required to do so.
+ @param features Extensible parameter for passing any additional
+ features to be used for this save.
The plugin is expected to store everything necessary to completely
restore its state later (possibly much later, in a different process, on
a completely different machine, etc.)
- The @c callback_data pointer and @c store function MUST NOT be used
+ The @c handle pointer and @c store function MUST NOT be used
beyond the scope of save().
This function has its own special threading class: it may not be called
@@ -205,20 +207,24 @@ typedef struct _LV2_State_Interface {
care to do so in such a way that a concurrent call to save() will save a
consistent representation of plugin state for a single instant in time.
*/
- void (*save)(LV2_Handle instance,
- LV2_State_Store_Function store,
- LV2_State_Handle handle,
- uint32_t flags);
+ void (*save)(LV2_Handle instance,
+ LV2_State_Store_Function store,
+ LV2_State_Handle handle,
+ uint32_t flags,
+ const LV2_Feature *const * features);
+
/**
Restore plugin state using a host-provided @c retrieve callback.
@param instance The instance handle of the plugin.
@param retrieve The host-provided retrieve callback.
- @param callback_data An opaque pointer to host data, e.g. the map or
+ @param handle An opaque pointer to host data, e.g. the map or
file from which the values are to be restored. If @c retrieve is
- called, this MUST be passed as its callback_data parameter.
+ called, this MUST be passed as its handle parameter.
@param flags Currently unused.
+ @param features Extensible parameter for passing any additional
+ features to be used for this restore.
The plugin MAY assume a restored value was set by a previous call to
LV2_State_Interface.save() by a plugin with the same URI.
@@ -227,7 +233,7 @@ typedef struct _LV2_State_Interface {
not be retrieved. This allows the host to reset the plugin state with an
empty map.
- The @c callback_data pointer and @c store function MUST NOT be used
+ The @c handle pointer and @c store function MUST NOT be used
beyond the scope of restore().
This function is in the "Instantiation" threading class as defined by
@@ -237,7 +243,8 @@ typedef struct _LV2_State_Interface {
void (*restore)(LV2_Handle instance,
LV2_State_Retrieve_Function retrieve,
LV2_State_Handle handle,
- uint32_t flags);
+ uint32_t flags,
+ const LV2_Feature *const * features);
} LV2_State_Interface;